[management] fix index creation if exist on mysql

[pascal-fischer]

Describe your changes

Issue ticket number and link

#4148

Stack

Checklist

• Is it a bug fix
• Is a typo/documentation fix
• Is a feature enhancement
• It is a refactor
• Created tests that fail without the change (if possible)
• Extended the README / documentation, if necessary

By submitting this pull request, you confirm that you have read and agree to the terms of the Contributor License Agreement.

[Copilot]

Pull Request Overview

This PR enhances the CreateIndexIfNotExists migration helper by adding explicit existence checks for MySQL, PostgreSQL, and SQLite, and introduces tests that run against in-memory SQLite and real MySQL/Postgres containers.

• Add dialect-specific queries in CreateIndexIfNotExists to skip index creation if it already exists.
• Extend setupDatabase to spin up MySQL/Postgres test containers based on NETBIRD_STORE_ENGINE.
• Introduce TestCreateIndex and TestCreateIndexIfExists to verify index creation and idempotency.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
management/server/migration/migration.go	Added INFORMATION_SCHEMA, pg_indexes, and sqlite_master checks before creating an index.
management/server/migration/migration_test.go	Extended setupDatabase to support MySQL/Postgres containers and added new tests for index creation.

Comments suppressed due to low confidence (1)

management/server/migration/migration_test.go:303

• [nitpick] The test name TestCreateIndexIfExists is ambiguous about its intent. Consider renaming it to TestCreateIndexIdempotent or TestCreateIndexNotRecreated to better convey that it verifies idempotent index creation.

func TestCreateIndexIfExists(t *testing.T) {

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud